Datasheet

78K0/Kx2-L CHAPTER 3 CPU ARCHITECTURE
R01UH0028EJ0400 Rev.4.00 115
Sep 27, 2010
3.4.7 Based addressing
[Function]
8-bit immediate data is added as offset data to the contents of the base register, that is, the HL register pair in the
register bank specified by the register bank select flag (RBS0 and RBS1), and the sum is used to address the
memory. Addition is performed by expanding the offset data as a positive number to 16 bits. A carry from the 16th
bit is ignored.
This addressing can be carried out for all of the memory spaces.
[Operand format]
Identifier Description
−
[HL + byte]
[Description example]
MOV A, [HL + 10H]; when setting byte to 10H
Operation code 10101110
00010000
[Illustration]
16 08
H
7
L
07
7 0
A
HL
The contents of the memory
addressed are transferred.
Memory
+10